Bash 列出所有 json 路径

Question

I have a json file and I want to list all the paths on it. For example: appsettings.json file:

{
  "foo": "bar",
  "zuzu": {
    "lele": "lala"
  },
  "eita": [
    {
      "oxe": "right"
    }
  ]
}

the expected result is a array that contains (as a bash variable):

[
  "foo",
  "zulu",
  "zuzu.lele",
  "eita",
  "eita.0",
  "eita.0.oxe"
]

I have tried the following with jq but I'm not able to iterate over the jq result and I'm clueless.

#!/bin/bash
join() {
    # $1 is return variable name
    # $2 is sep
    # $3... are the elements to join
    local retname=$1 sep=$2 ret=$3
    shift 3 || shift $(($#))
    printf -v "$retname" "%s" "$ret${@/#/$sep}"
}

jsonPaths=$(cat j.json | jq 'path(..)')

for path in $jsonPaths; do
  join pathString "." "${path[@]}"
  echo $path
done

Answer 1

$ jq '[ path(..) | join(".") ] | del(.[0])' /tmp/2.json
[
  "foo",
  "zuzu",
  "zuzu.lele",
  "eita",
  "eita.0",
  "eita.0.oxe"
]

Notes:

• cat file | jq cat file | jq is a useless use of cat . Do jq ... file
• to convert to a bash array, use the usuall readarray -t arr < <(jq -r ....)
• jq has a quite capable programming language. First try to solve problems in jq .